fix: empty addons_config handling

Author: 0Delta

main.tf

@@ -118,9 +118,9 @@ locals {
   cluster_output_min_master_version                 = google_container_cluster.primary.min_master_version
   cluster_output_logging_service                    = google_container_cluster.primary.logging_service
   cluster_output_monitoring_service                 = google_container_cluster.primary.monitoring_service
-  cluster_output_network_policy_enabled             = google_container_cluster.primary.addons_config[0].network_policy_config[0].disabled
-  cluster_output_http_load_balancing_enabled        = google_container_cluster.primary.addons_config[0].http_load_balancing[0].disabled
-  cluster_output_horizontal_pod_autoscaling_enabled = google_container_cluster.primary.addons_config[0].horizontal_pod_autoscaling[0].disabled
+  cluster_output_network_policy_enabled             = coalescelist(lookup(coalescelist(google_container_cluster.primary.addons_config, [{}])[0], "network_policy_config", [{}]), [{disabled=false}])[0].disabled
+  cluster_output_http_load_balancing_enabled        = coalescelist(lookup(coalescelist(google_container_cluster.primary.addons_config, [{}])[0], "http_load_balancing", [{}]), [{disabled=false}])[0].disabled
+  cluster_output_horizontal_pod_autoscaling_enabled = coalescelist(lookup(coalescelist(google_container_cluster.primary.addons_config, [{}])[0], "horizontal_pod_autoscaling", [{}]), [{disabled=false}])[0].disabled
   cluster_output_vertical_pod_autoscaling_enabled   = google_container_cluster.primary.vertical_pod_autoscaling != null && length(google_container_cluster.primary.vertical_pod_autoscaling) == 1 ? google_container_cluster.primary.vertical_pod_autoscaling[0].enabled : false